(19)

(11)

EP 3 830 678 A1

(12)

(43) Date of publication: 09.06.2021 Bulletin 2021/23 (21) Application number: 19866923.6 (22) Date of filing: 01.08.2019

(51) International Patent Classification (IPC):  G06F 3/0354(2013.01) H04B 5/00(2006.01) G06F 3/038(2013.01) H04W 4/80(2018.01) (86) International application number: PCT/KR2019/009618 (87) International publication number: WO 2020/067639 (02.04.2020 Gazette 2020/14)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 28.09.2018 KR 20180115940 (71) Applicant: Samsung Electronics Co., Ltd. Suwon-si, Gyeonggi-do, 16677 (KR)	(72) Inventors: JEON, Hojin Suwon-si, Gyeonggi-do 16677 (KR) KANG, Donghoon Suwon-si, Gyeonggi-do 16677 (KR) KWON, Zion Suwon-si, Gyeonggi-do 16677 (KR) KIM, Jeonghoon Suwon-si, Gyeonggi-do 16677 (KR) SHIN, Sangmin Suwon-si, Gyeonggi-do 16677 (KR) LIM, Yeunwook Suwon-si, Gyeonggi-do 16677 (KR) (74) Representative: HGF  1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)